Trolling downrigger



FIG. 1 is a side view of the trolling downrigger embodying my design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is an end view as seen from the right side of FIG. 2;

FIG. 5 is an end view as seen from the left side of FIG. 1; and

FIG. 6 is a side view as seen from the backside of FIG. 1.

The ornamental design for a trolling downrigger, substantially as shown.